Script for creating GO annotation file from Interproscan output

[gtduarte]

Dear comunity,

I am working with a non-model organism, thus I have to use alternative approaches for many of the analyses. At the moment I want to run the GO enrichment analysis of my differentially expressed transcripts using BiNGO, and for that I have to load my own annotation file of the transcriptome assembly which I created with Interproscan. The output of IPRS can be found here: https://github.com/ebi-pf-team/inter...example-output

So basically, using the IPRS output I have to create one association per line of the transcript ID that is in the 1st column with the GO term that is 14th column. The issue is that for many transcripts there are different GO terms associated, while others have none, as for instance:

transcript_1 ...columns_2-13... GO:0004601|GO:0006979|GO:0020037|GO:0055114
transcript_1 ...columns_2-13... GO:0004601|GO:0006979|GO:0020037|GO:0055114
transcript_1 ...columns_2-13...
transcript_1 ...columns_2-13... GO:0004601|GO:0055114
transcript_1 ...columns_2-13... GO:0004601|GO:0042744
transcript_2 ...columns_2-13...
transcript_2 ...columns_2-13... GO:0055085

And here is how the the custom annotation file should be:

transcript_1 = 0004601
transcript_1 = 0006979
transcript_1 = 0020037
transcript_1 = 0055114
transcript_1 = 0042744
transcript_2 = 0055085

Please, can someone help me with that? It wouldn't be a problem if the output of the script generates reduntant lines really, I can remove duplicated values later.

Best regards,

Gustavo

[neavemj]

Hi Gustavo,

I've attached a little python script that should do what you want. I had to name it "rearrange_go.txt" because of seqanswers restrictions - just rename it "rearrange_go.py".

First open the python file in a text editor and replace INPUT_FILE_NAME with the name of your file. Then put the script in the same directory as your file and run the following:

python rearrange_go.py

Another file called 'custom_annotation.txt' should be created. The script assumes you have python installed (mac and linux usually do by default). It also assumes that column 14 is always GO terms, and not anything else, though it can be blank.

Give it a go and let me know if it works!

Cheers,

Matt.

[gtduarte]

Hi Matt,

It worked, thanks a lot!!! You saved my day xD

Cheers,

Gustavo

[neavemj]

Excellent! Glad it worked